Home / 138,156.16-207,234.22-38,316.35

Finding the Fourth Proportional to 138,156.16, 207,234.22 and 38,316.35

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Solution

The fourth proportional to 138,156.16, 207,234.22 and 38,316.35 is: 57,474.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,156.16 : 207,234.22 = 38,316.35 : x
  2. Step 2: Convert to fraction form
    138,156.16/207,234.22 = 38,316.35/x
  3. Step 3: Cross multiply
    138,156.16x = 207,234.22 × 38,316.35
  4. Step 4: Simplify right side
    138,156.16x = 7,940,458,483.20
  5. Step 5: Solve for x
    x = 7,940,458,483.20/138,156.16
  6. Step 6: Final answer
    x = 57,474.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.